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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 4-6 days






2. What about the sperm for a bull which has been castrated but still has testicles?






3. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






4. 147 days






5. Male on one pin and female on other side






6. Sperm production






7. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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8. Superior genes are _______ to multiply






9. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






10. 45-60 days after breeding; re-breed as required






11. Birthing process (termination of gestation)






12. What makes the milk flow through the mammary glands?






13. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






14. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






15. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






16. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






17. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






18. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






19. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






20. Animals which have many estrous periods per year (ex: cow - sow)






21. Larger the cow - more milk is produced; smaller the cow - less milk is produced






22. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






23. Days which have increasing daylight hours

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24. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






25. Not under a timeline - cow can not be sold as steak






26. 1-2 days






27. ~305 days (altough often longer due to breeding difficulties)






28. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






29. (switzerland) 2nd in size and milk production - most muscle -






30. 45-60 days after breeding; re-breed as required






31. What makes the milk flow through the mammary glands?






32. To remove/separate testicles from animal's body before animal reaches puberty






33. What helps regulate spermatogenesis?






34. Microscopic - make sure not sterile - very few bulls are actually tested






35. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






36. Provide nourishment for the developing sperm






37. 114 days






38. 24 hours before end of estrus cycle






39. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






40. 265-285 days






41. 30-38 hours after estrus cycle begins






42. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






43. Check feet and legs - look for masculine traits in build such as crest and muscling






44. Animal which has been castrated after puberty






45. (FSH) causes egg to mature in females






46. To remove/separate testicles from animal's body before animal reaches puberty






47. Why Dairy calves are fed powdered milk.






48. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






49. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






50. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells